[time-nuts] Voyager space probe question

Sat Nov 28 22:28:27 UTC 2020

On Sun 2020-11-29T11:06:18+1300 donald collie hath writ:
> Can any group member describe the onboard frequency reference[s] used in
> the Voyager space probes? They have done extremely well over the decades -
> are they Cesium?, Rubidium?, Quartz?

The ultra stable oscillators USOs are crystals
http://adsabs.harvard.edu/full/2004ESASP.544..131A

One of them has failed, and they were never always on, in which case
the aux osc are other crystals
https://descanso.jpl.nasa.gov/DPSummary/Descanso4--Voyager_new.pdf

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Steve Allen                    <sla at ucolick.org>              WGS-84 (GPS)
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